package com.dm.service.impl;

import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.dm.config.AliPayConfig;
import com.dm.service.AlipayService;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
@Component
public class AlipayServiceImpl implements AlipayService {
    @Resource
    private AliPayConfig aliPayConfig;
    @Override
    public String getPay(String orderId, String price, String itemName) throws Exception {
        //获得初始化的AlipayClient
        AlipayClient alipayClient = new DefaultAlipayClient(aliPayConfig.getUrl(),
                aliPayConfig.getAppId(), aliPayConfig.getAppPrivateKey(),
                "json", aliPayConfig.getCharSet(),
                aliPayConfig.getAlipayPublicKey(), aliPayConfig.getSignType());

        //设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(aliPayConfig.getReturnUrl());
        alipayRequest.setNotifyUrl(aliPayConfig.getNotifyUrl());

        //商户订单号，商户网站订单系统中唯一订单号，必填
        String out_trade_no =orderId;
        //付款金额，必填
        String total_amount = price;
        //订单名称，必填
        String subject = itemName;
        //商品描述，可空
        String body = "";

        alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
                + "\"total_amount\":\""+ total_amount +"\","
                + "\"subject\":\""+ subject +"\","
                + "\"body\":\""+ body +"\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

        //若想给BizContent增加其他可选请求参数，以增加自定义超时时间参数timeout_express来举例说明
        //alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
        //		+ "\"total_amount\":\""+ total_amount +"\","
        //		+ "\"subject\":\""+ subject +"\","
        //		+ "\"body\":\""+ body +"\","
        //		+ "\"timeout_express\":\"10m\","
        //		+ "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");
        //请求参数可查阅【电脑网站支付的API文档-alipay.trade.page.pay-请求参数】章节

        //请求
        String result = alipayClient.pageExecute(alipayRequest).getBody();
        return result;
    }
}
